Battery charger



FIG. 1 is a front elevational view of one embodiment of a battery charger in accordance with my invention;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a front perspective view thereof; and,

FIG. 8 is a rear perspective view thereof. 

The ornamental design for battery charger, as shown and described. 